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Finding the Fourth Proportional to 713,201.44, 984,326.40 and 455,189.76

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Solution

The fourth proportional to 713,201.44, 984,326.40 and 455,189.76 is: 628,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,201.44 : 984,326.40 = 455,189.76 : x
  2. Step 2: Convert to fraction form
    713,201.44/984,326.40 = 455,189.76/x
  3. Step 3: Cross multiply
    713,201.44x = 984,326.40 × 455,189.76
  4. Step 4: Simplify right side
    713,201.44x = 448,055,297,777.66
  5. Step 5: Solve for x
    x = 448,055,297,777.66/713,201.44
  6. Step 6: Final answer
    x = 628,231.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.